.login-form{
  position:fixed;
  width:350px;
  left:50%;
  top:50%;
  transform: translate(-50%, -50%);
  box-shadow: 0 2px 12px 0 rgba(0,0,0,.1);
  padding:20px 20px 30px;
  box-sizing: border-box;
  img{
    width:100px;
    height:100px;
    border-radius:50%;
    margin:0 auto;
    display:block;
    margin-bottom:10px;
  }
  .login-form-button{
    width:100%;

  }
}